A new energy automobile battery pack heat dissipation device

Abstract

The utility model relates to battery pack heat abstractor technical field discloses a new energy automobile battery pack heat abstractor, including the bracket, the bracket top is provided with the heat dissipation shell, is established with a plurality of liquid cooling tank in the heat dissipation shell inside, the heat dissipation shell top fixedly connected with cooling valve, cooling valve side wall is provided with the connecting assembly, the connecting assembly includes the fixed pipe, a plurality of clamping plates are rotatably connected to the fixed pipe outer wall, spring no.

Description

Technical Field

[0001] This utility model relates to the technical field of battery pack heat dissipation devices, and in particular to a heat dissipation device for a new energy vehicle battery pack. Background Technology

[0002] Battery packs and their cooling systems are key components for ensuring stable battery operating temperatures and extending battery life in new energy vehicles. Since batteries generate heat during charging and discharging, battery packs require effective cooling systems to prevent overheating. Good cooling systems help maintain a suitable temperature range during operation, improving overall performance and safety, and preventing excessively high temperatures from affecting battery efficiency or lifespan.

[0003] Traditional heat dissipation systems typically consist of heat sinks, liquid cooling pipes, coolant, and pumps. Heat sinks aid heat dissipation by increasing the contact area, while liquid cooling pipes deliver the coolant to the areas requiring cooling. The coolant absorbs heat and then flows back into the system for further cooling. The pump helps circulate the coolant, ensuring stable system operation. The coordinated use of each component effectively facilitates heat conduction and dissipation.

[0004] Traditional liquid cooling pipe connections in heat dissipation systems are inconvenient, usually due to a lack of flexibility in pipe design, making installation and maintenance cumbersome. Because pipes typically require precise connections between different components, and space constraints often make connection design challenging. Inconvenient pipe connections lead to less streamlined and efficient heat dissipation system installation, and also increase the difficulty of later maintenance. Improper liquid cooling pipe connections can result in poor cooling performance, affecting battery temperature control performance and even causing malfunctions or overheating, impacting the safety and reliability of the entire vehicle. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a heat dissipation device for new energy vehicle battery packs, aiming to improve the problem of inconvenient connection of liquid cooling pipes in traditional heat dissipation devices, which leads to poor cooling effect and thus affects the temperature control performance of the battery.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat dissipation device for a new energy vehicle battery pack, including a bracket, a heat dissipation shell is provided on the top of the bracket, a plurality of liquid cooling tanks are provided inside the heat dissipation shell, a cooling valve is fixedly connected to the top of the heat dissipation shell, and a connecting component is provided on the side wall of the cooling valve;

[0007] The connecting assembly includes a fixed tube, with multiple clamping plates rotatably connected to the outer wall of the fixed tube. A spring is provided on the side wall of each clamping plate, with both ends of the spring fixedly connected to the fixed tube and the side wall of the clamping plate, respectively. A cooling tube is provided on the side wall of the fixed tube, with a connecting pipe threaded to one end of the cooling tube. A slot is provided inside the connecting pipe, and the clamping plate is clamped inside the slot. A fixing assembly is provided on the upper surface of the bracket.

[0008] As a further description of the above technical solution:

[0009] The fixing component includes multiple springs, with the lower surface of each spring fixedly connected to the upper surface of the bracket.

[0010] As a further description of the above technical solution:

[0011] Each spring has a slidingly connected mating part inside, and a positioning tube is fixedly connected to the lower surface of each mating part.

[0012] As a further description of the above technical solution:

[0013] The positioning tube has an inner cavity and multiple side grooves inside.

[0014] As a further description of the above technical solution:

[0015] The docking component has a top shaft that is slidably connected inside, and a sliding shaft is fixedly connected to the bottom of the top shaft.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the sliding shaft is fixedly connected to a limiting tube, which is slidably connected inside the inner cavity.

[0018] As a further description of the above technical solution:

[0019] A second spring is fitted on the outer wall of the top shaft, and the two ends of the second spring are respectively fixedly connected to the inner wall of the docking part and the outer wall of the top shaft.

[0020] As a further description of the above technical solution:

[0021] The positioning tube has multiple parts inside, and the sliding connection is inside the side groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the liquid cooling pipe is firstly connected by the elastic engagement of the clamping plate and the spring, and the threaded fixation of the cooling pipe and the connecting pipe, so as to avoid coolant leakage or poor circulation, ensure that heat is efficiently carried away by the coolant, maintain the stable operating temperature of the battery, and extend the battery life.

[0024] 2. In this utility model, by pulling the top shaft, the sliding shaft and the limiting tube can be moved, releasing the limitation on the positioning pin, so that the positioning pin can quickly disengage from the docking part. The disassembly and assembly of the heat dissipation shell and the bracket can be completed without complicated tools, which greatly improves the efficiency of later maintenance. Attached Figure Description

[0025] Figure 1 This is a perspective view of a heat dissipation device for a new energy vehicle battery pack proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the connecting pipe of a heat dissipation device for a new energy vehicle battery pack proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the fixing pipe of a heat dissipation device for a new energy vehicle battery pack proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the docking parts for a heat dissipation device for a new energy vehicle battery pack proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the top shaft of a heat dissipation device for a new energy vehicle battery pack proposed in this utility model.

[0030] Legend:

[0031] 1. Bracket; 2. Heat dissipation shell; 3. Liquid cooling tank; 4. Cooling valve; 5. Cooling pipe; 6. Connecting pipe; 7. Slot; 8. Fixing pipe; 9. Clamping plate; 10. Spring 1; 11. Connecting piece; 12. Top shaft; 13. Positioning pipe; 14. Inner cavity; 15. Side groove; 16. Sliding shaft; 17. Limiting pipe; 18. Spring 2; 20. Positioning pin. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3This utility model provides an embodiment of a heat dissipation device for a new energy vehicle battery pack, including a bracket 1. The bracket 1 is made of Q235 high-strength carbon steel and serves to provide stable vertical support for the heat dissipation shell 2, while bearing the weight of the battery pack and preventing the battery pack from directly contacting the ground and becoming damp or damaged. Its high strength characteristics can withstand the bumps and impacts during vehicle operation, which is common knowledge and will not be elaborated further here. The top of the bracket 1 is provided with a heat dissipation shell 2, and multiple liquid cooling tanks 3 are opened inside the heat dissipation shell 2. A cooling valve 4 is fixedly connected to the top of the heat dissipation shell 2. The cooling valve 4 is used to control the flow rate of coolant between the liquid cooling tanks 3 and the connecting components. When the battery heats up, the cooling valve 4 is opened to increase the coolant flow rate and improve the heat dissipation efficiency. When the battery temperature is low, the flow rate is reduced to save energy and achieve dynamic adjustment of heat dissipation efficiency. A connecting component is provided on the side wall of the cooling valve 4.

[0034] The connecting assembly includes a fixed tube 8, with multiple locking plates 9 rotatably connected to the outer wall of the fixed tube 8. The locking plates 9 cooperate with the fixed tube 8 and spring 10 to rotate and engage. In its natural state, spring 10 pushes the locking plates 9 to maintain an outwardly open posture. When the connecting tube 6 is inserted into the fixed tube 8, the locking plates 9 are squeezed by the inner wall of the connecting tube 6 and rotate around the fixed tube 8 to retract. When the locking plates 9 move to the slot 7 of the connecting tube 6, spring 10 elastically resets and pushes the locking plates 9 into the slot 7, achieving the effect of initially locking the fixed tube 8 and the connecting tube 6. Spring 10 is provided on the side wall of the locking plates 9, with both ends of spring 10 fixedly connected to the side wall of the fixed tube 8 and the side wall of the locking plates 9, respectively. Cooling tube 5 is provided on the side wall of the fixed tube 8, with one end of the cooling tube 5 threadedly connected to the connecting tube 6. The connecting tube 6 has a slot 7 inside, and the locking plates 9 are locked inside the slot 7. The upper surface of the bracket 1 is provided with a fixing assembly.

[0035] Reference Figure 4 and Figure 5The fixing assembly includes multiple springs 10, the lower surfaces of which are fixedly connected to the upper surface of the bracket 1. Each spring 10 has a slidingly connected mating part 11 inside, and a positioning tube 13 is fixedly connected to the lower surface of each mating part 11. The positioning tube 13 is used to accommodate the inner cavity 14, the side groove 15, and the positioning pin 20, providing a closed space for the sliding of the limiting tube 17 and the extension and retraction of the positioning pin 20. The positioning tube 13 has an inner cavity 14 inside, which cooperates with the limiting tube 17 for sliding guidance. When the limiting tube 17 slides up and down along the inner wall of the inner cavity 14, the extension and retraction of the positioning pin 20 can be precisely controlled. In the retracted state, to prevent the limiting tube 17 from shifting and causing the positioning pin 20 to fail to pop out or retract properly, the positioning tube 13 has multiple side grooves 15 inside. The docking part 11 is slidably connected to the top shaft 12. The bottom of the top shaft 12 is fixedly connected to the sliding shaft 16. The bottom end of the sliding shaft 16 is fixedly connected to the limiting tube 17. The limiting tube 17 is slidably connected inside the inner cavity 14. The outer wall of the top shaft 12 is fitted with a second spring 18. The two ends of the second spring 18 are fixedly connected to the inner wall of the docking part 11 and the outer wall of the top shaft 12, respectively. The positioning tube 13 is provided with multiple positioning pins 20, which are slidably connected inside the side grooves 15.

[0036] Working principle: First, the clamping plate 9 on the outer wall of the fixed tube 8 is kept open under the elastic force of the spring 10. When the fixed tube 8 is connected to the cooling tube 5, the connecting pipe 6 at one end of the cooling tube 5 is inserted into the fixed tube 8. After the clamping plate 9 is pressed, it slides into the clamping groove 7 of the connecting pipe 6. The spring 10 returns to its original position and pushes the clamping plate 9 to clamp the clamping groove 7. At the same time, the threaded connection between the cooling tube 5 and the connecting pipe 6 is further reinforced, ensuring that the coolant circulates along the cooling tube 5, the connecting pipe 6, the fixed tube 8, and the liquid cooling tank 3, and stably removes heat. When it is necessary to disassemble and install the heat dissipation shell 2, the top shaft 12 is pulled upward. After the top shaft 12 is subjected to force, it drives the sliding shaft 16 to slide inside the inner cavity 14. At this time, the limiting tube 17 no longer limits the positioning pin 20, so that the top shaft 12 can be pulled out from the docking part 11, realizing the convenient disassembly and assembly of the bracket 1 and the heat dissipation shell 2.

Claims

1. A heat dissipation device for a new energy vehicle battery pack, comprising a bracket (1), characterized in that: The bracket (1) is provided with a heat dissipation shell (2) on the top. The heat dissipation shell (2) has multiple liquid cooling tanks (3) inside. A cooling valve (4) is fixedly connected to the top of the heat dissipation shell (2). A connecting component is provided on the side wall of the cooling valve (4). The connecting assembly includes a fixed tube (8), the outer wall of which is rotatably connected to multiple clamping plates (9). A spring (10) is provided on the side wall of the clamping plate (9). The two ends of the spring (10) are respectively fixedly connected to the side wall of the fixed tube (8) and the side wall of the clamping plate (9). A cooling tube (5) is provided on the side wall of the fixed tube (8). One end of the cooling tube (5) is threadedly connected to a connecting pipe (6). A slot (7) is opened inside the connecting pipe (6). The clamping plate (9) is clamped inside the slot (7). A fixing assembly is provided on the upper surface of the bracket (1).

2. The heat dissipation device for a new energy vehicle battery pack according to claim 1, characterized in that: The fixing component includes a plurality of springs (10), the lower surfaces of which are fixedly connected to the upper surface of the bracket (1).

3. The heat dissipation device for a new energy vehicle battery pack according to claim 2, characterized in that: Each of the springs (10) has a sliding connection to a docking part (11), and a positioning tube (13) is fixedly connected to the lower surface of each docking part (11).

4. A heat dissipation device for a new energy vehicle battery pack according to claim 3, characterized in that: The positioning tube (13) has an inner cavity (14) inside, and multiple side grooves (15) are formed inside the positioning tube (13).

5. A heat dissipation device for a new energy vehicle battery pack according to claim 4, characterized in that: The docking part (11) is internally slidably connected to a top shaft (12), and the bottom of the top shaft (12) is fixedly connected to a sliding shaft (16).

6. A heat dissipation device for a new energy vehicle battery pack according to claim 5, characterized in that: The bottom end of the sliding shaft (16) is fixedly connected to a limiting tube (17), and the limiting tube (17) is slidably connected inside the inner cavity (14).

7. A heat dissipation device for a new energy vehicle battery pack according to claim 6, characterized in that: A second spring (18) is sleeved on the outer wall of the top shaft (12), and the two ends of the second spring (18) are respectively fixedly connected to the inner wall of the docking part (11) and the outer wall of the top shaft (12).

8. A heat dissipation device for a new energy vehicle battery pack according to claim 6, characterized in that: The positioning tube (13) is provided with a plurality of (20) inside, and the (20) is slidably connected inside the side groove (15).

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